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Baking stone
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A baking stone is a portable cooking surface used in baking. It may be made of ceramic, stone or, more recently, salt.[1][2] Food is put on the stone, which is then placed in an oven, though sometimes the stone is heated first.[3] Baking stones are used much like cookie sheets, but may absorb additional moisture for crispier food.[4][5] A pizza stone is a baking stone designed for cooking pizza.
Overview
[edit]Due to the thermal mass of baking stones and the material's property as a poor heat conductor, food is less likely to burn when one uses a baking stone instead of metal or glass bakeware. Baking stones are a variation on hot stone cooking, which is one of the oldest cooking techniques known. Some cooks recommend sprinkling corn meal or flour on the baking stone to prevent the crust from sticking or using parchment paper atop the stone.[6][7][8][9] Baking "stones" may be purchased as unglazed ceramic tiles, unglazed fired clay tiles and quarried tiles, from tile shops and hardware stores.[2][10][11]
To prevent fracturing of the stone by thermal shock, some bakers place the baking stone in a cold oven and heat it over at least 45 minutes,[2] then allow it to cool slowly inside the oven after switching it off. Because of the possibility of rapid temperature change,[12] baking stones should not be left in an oven while it is in self cleaning mode.[13]
Baking stones can be cleaned with a dry brush or scouring pad followed by plain hot water.[13] Because it is porous, a baking stone will absorb any fluid it contacts,[5] including detergent. Use of any detergents may taint the stone, imparting the flavor of detergent to foods later cooked on the stone.[14]
Pizza stone
[edit]When designed for cooking pizzas, a baking stone is often referred to as a pizza stone. Using a pizza stone more or less mimics the effects of cooking a pizza in a masonry oven. The porous nature of the stone absorbs moisture, resulting in a crispier crust. Small pizza stones can be purchased to fit any conventional cooking oven or an enclosed barbecue-style grill. High-end ovens sometimes offer optional pizza stones that are specifically designed for each oven model and may include a specialized heating element. In addition to traditional methods, a pizza stone can also be made out of metal.[15][16]
Pizza / baking steel
[edit]A usually 16 in (410 mm) long x 16 in (410 mm) wide x 1⁄4 in (6.4 mm) thick A36 steel plate[17][18][19] conducts heat better than stone and is safe to use with any broiler or grill, but gives off too much heat for bread, cookies, and croissants.[20] Its carbon steel is heavier thus it needs to be pre-seasoned before use. The optimal thickness is determined by the oven temperature.[21][22][23][24][25]
See also
[edit]- Earth oven – underground ovens
- Masonry oven – colloquially known as a brick oven or stone oven
References
[edit]- ^ Bitterman, Mark (2010). Salted: A Manifesto on the World's Most Essential Mineral, with Recipes. Ten Speed Press. p. 271. ISBN 9781580082624.
- ^ a b c Fowler, D.L.; Stratton, A. (2005). Damon Lee Fowler's New Southern Baking: Classic Flavors for Today's Cook. Simon & Schuster. p. 27. ISBN 978-0-7432-5058-0. Retrieved October 11, 2017.
- ^ Hitz, C. (2008). Baking Artisan Bread: 10 Expert Formulas for Baking Better Bread at Home. Quarry Books. p. 36. ISBN 978-1-61673-526-5. Retrieved October 11, 2017.
- ^ Orsini, G.; Orsini, J.E. (2007). Italian Baking Secrets. St. Martin's Press. p. 53. ISBN 978-0-312-35820-4. Retrieved October 12, 2017.
- ^ a b Bridge, F.; Tibbetts, J.F. (1991). The well-tooled kitchen. Morrow. p. 136. ISBN 9780688081355. Retrieved October 12, 2017.
- ^ Jordan, M. (2011). California Home Cooking: 400 Recipes that Celebrate the Abundance of Farm and Garden, Orchard and Vineyard, Land and Sea. America cooks. Harvard Common Press. p. 263. ISBN 978-1-55832-119-9. Retrieved October 12, 2017.
- ^ Brooks, M. (2006). The Guaranteed No Burnt Bottoms Cookies Cookbook. Monica's Best Bakes. p. 13. ISBN 978-0-615-13418-5. Retrieved October 12, 2017.
- ^ Reinhart, P.; Manville, R. (2011). The Bread Baker's Apprentice: Mastering the Art of Extraordinary Bread. Potter/TenSpeed/Harmony. p. 260. ISBN 978-1-60774-129-9. Retrieved October 12, 2017.
- ^ Black, S. (2016). One Dough, Ten Breads: Making Great Bread by Hand. Houghton Mifflin Harcourt. p. 158. ISBN 978-0-544-57933-0. Retrieved October 12, 2017.
- ^ Reinhart, P.; Manville, R. (2007). Peter Reinhart's Whole Grain Breads: New Techniques, Extraordinary Flavor. Cookery, Food and Drink Series. Ten Speed Press. p. 85. ISBN 978-1-58008-759-9. Retrieved October 12, 2017.
- ^ Alterman, T.; Nauman, T. (2015). Whole Grain Baking Made Easy: Craft Delicious, Healthful Breads, Pastries, Desserts, and More - Including a Comprehensive Guide to Grinding Grains. Voyageur Press. p. 90. ISBN 978-0-7603-4598-6. Retrieved October 12, 2017.
- ^ "Understanding the Best Oven Temperature for Making Pizza Using Different Oven Types".
- ^ a b Cook's Illustrated Cookbook: 2,000 Recipes from 20 Years of America's Most Trusted Food Magazine. America's Test Kitchen. 2011. p. 3463. ISBN 978-1-936493-13-5. Retrieved October 11, 2017.
- ^ Gemignani, T.; Morgan, D.; Peterson, S. (2012). Pizza: More than 60 Recipes for Delicious Homemade Pizza. Chronicle Books LLC. p. 18. ISBN 978-1-4521-1276-3. Retrieved October 12, 2017.
- ^ Parsons, Russ (February 1, 2013). "A pizza stone of steel". Los Angeles Times. Retrieved October 14, 2017.
- ^ Perry, Charles (February 22, 2006). "Soapstone: cookware that rocks". Los Angeles Times. Retrieved 2017-10-11.
- ^ "Combine The KettlePizza and the Baking Steel For The Ultimate Home Pizza Setup". The Pizza Lab. Serious Eats. Retrieved 1 January 2022.
- ^ Lagsdin, Andris (2017). Baking with steel : the revolutionary new approach to perfect pizza, bread, and more (First ed.). New York: Voracious. ISBN 978-0316465786.
- ^ "Baking with Steel: The Revolutionary New Approach to Perfect Pizza, Bread, and More". Barnes & Noble. Retrieved 1 January 2022.
- ^ "The Best Pizza Stone and Baking Steel". The New York Times. 21 July 2021. Retrieved 1 January 2022.
- ^ "Pizza Steel Thickness Guide: Why Girth Matters When It Comes To Homemade Pizza - My House Of Pizza". www.myhouseofpizza.com. 2023-08-01. Retrieved 2023-08-28.
- ^ Ben. "Best Pizza Stones & Baking Steels". Na Pizza. Archived from the original on 1 January 2022. Retrieved 1 January 2022.
- ^ "Baking Steel Archives". Modernist Cuisine. 19 April 2013. Retrieved 1 January 2022.
- ^ "Steel VS Stone: Which Surface is Better for Baking Bread?". The Bread Guide. Retrieved 1 January 2022.
- ^ Lagsdin, Andris. "Perfect Pizza Using Baking Steel Broiler Method". Baking Steel ®. Retrieved 1 January 2022.
Baking stone
View on GrokipediaIntroduction
Definition and Purpose
A baking stone is a thick, flat slab constructed from heat-retaining materials such as natural stone, ceramic compounds like cordierite, or metal, serving as a specialized baking surface that replicates the thermal characteristics of a traditional masonry oven floor to promote uniform heat distribution during baking.[2][3] Its primary purpose is to absorb excess moisture from the underside of dough while providing intense, consistent bottom heat, resulting in a crisp exterior and well-structured interior for items like breads, pizzas, and pastries, thereby preventing sogginess and enhancing texture.[4][5] The effectiveness of a baking stone stems from its high thermal mass, which enables it to absorb heat gradually during preheating and release it steadily and evenly onto the food, fostering better oven spring and uniform browning without hot spots.[2] This contrasts sharply with standard metal baking sheets, which have lower thermal mass and conduct heat rapidly but unevenly, often leading to inconsistent results such as undercooked centers or burnt edges.[3][2] The modern solid pizza stone for home use emerged in the early 1970s, invented by Chicago restaurant critic Pasquale "Pat" Bruno, who drew inspiration from Julia Child's suggestion to use fire bricks for pizza crusts, leading to the development of a single, solid stone piece for domestic ovens.[6] It gained widespread popularity during the 1970s and 1980s amid the surge in home pizza preparation and artisanal baking trends, making professional-quality results accessible to everyday cooks.[7][6]Historical Development
The use of heated stones or clay slabs for baking flatbreads dates back to ancient civilizations, with archaeological evidence from Mesopotamia and ancient Egypt indicating their application in simple ovens around 3000 BCE.[8] These early baking surfaces, often preheated in open fires, allowed for the production of unleavened or leavened flatbreads, which served as staples in daily diets and precursors to modern pizza-like dishes.[9] The Romans later refined this practice, incorporating stone-lined ovens into their communal baking structures, enhancing heat retention for consistent results in bread and flatbread preparation.[10] During the medieval period in Europe, stone hearths became integral to wood-fired ovens, particularly in communal setups that supported bread baking for entire villages.[11] These masonry constructions, built from local stone or brick, exemplified the concept of thermal mass by absorbing and radiating heat evenly, allowing multiple loaves to bake sequentially after a single firing.[11] This adaptation persisted through the Renaissance, influencing artisanal baking techniques across Europe and laying foundational principles for heat distribution still relevant today.[10] In the mid-20th century, baking stones were mass-produced using transite, a cement-asbestos composite, from the 1940s until its ban in 1985 due to health risks associated with asbestos exposure.[1] The modern baking stone emerged in the 20th century, with the pizza stone specifically invented in the early 1970s by Chicago restaurant critic and cookbook author Pat Bruno, inspired by techniques from Julia Child to replicate professional oven results at home.[12] Bruno's innovation, often credited to Italian-American culinary influences, led to the first commercial products aimed at home cooks seeking crisp crusts without wood-fired setups.[6] By the late 1970s and into the 1980s, companies began marketing baking stones, transitioning the tool from professional to consumer markets. Key milestones in the 1980s included a surge in popularity driven by the American pizza boom and direct-selling brands like Pampered Chef, which promoted stoneware for home ovens starting in 1980, making even baking accessible for pizzas and breads.[13] The 2000s saw the widespread adoption of cordierite ceramic stones, valued for their superior thermal shock resistance and durability, which allowed safer high-temperature home baking without cracking.[14] Baking stones have played a significant role in reviving artisanal traditions, notably through the Associazione Verace Pizza Napoletana (AVPN) certification standards established in 1984, which mandate cooking on a refractory stone surface in wood-fired ovens with a dome temperature of 485°C (cooking surface 380–430°C) to achieve the characteristic soft, leopard-spotted crust of Neapolitan pizza.[15] This requirement underscores the stone's enduring importance in preserving authentic techniques amid global commercialization.[16]Materials and Construction
Natural Stone Varieties
Natural stone varieties for baking stones primarily include granite and soapstone, each derived from naturally occurring minerals quarried or processed to leverage their thermal properties for even baking. Granite, an igneous rock composed mainly of quartz, feldspar, and mica, is sourced from quarries in regions such as the United States (including states like Vermont and Georgia) and Italy, where major deposits support high-volume extraction for various applications including baking surfaces. Soapstone, a metamorphic rock rich in talc, is quarried predominantly in the United States, with key sites in Virginia's Blue Ridge Mountains providing dense, heat-retaining slabs suitable for baking.[17] These stones exhibit high thermal mass, enabling them to absorb and retain heat effectively during baking. Granite, for instance, has a specific heat capacity of approximately 0.79 J/g°C, allowing it to maintain stable temperatures for uniform crust development. Porosity varies among varieties, with granite featuring microscopic pores that facilitate moisture absorption from dough, promoting crisp textures without sogginess, while soapstone's denser structure offers lower porosity for minimal absorption but excellent heat distribution. Natural imperfections, such as mineral veins in granite or subtle color variations in soapstone, can influence localized heat retention. Unique advantages of natural stones include enhanced durability from their mineral compositions. Granite and soapstone can withstand temperatures up to 1200°F, but require gradual preheating to avoid thermal shock and potential cracking—granite in particular has lower resistance to rapid temperature changes compared to ceramics.[18] Seasoning with oil helps seal minor pores for better hygiene and non-stick properties but does not prevent thermal shock. Soapstone's talc content provides natural non-stick properties, reducing the need for additional oils. These stones outperform engineered alternatives in organic heat cycling, mimicking traditional hearth baking for superior texture in breads and pizzas. Manufacturing involves quarrying raw blocks, followed by precision cutting into slabs typically 12-16 inches in diameter or rectangular equivalents (e.g., 14x16 inches) and 0.5-1 inch thick to balance weight and heat capacity. Surfaces are left unsealed to preserve breathability, allowing vapor exchange that enhances baking results, with edges often beveled for safe handling. This process ensures slabs fit standard ovens while retaining the stone's inherent variations. Environmental considerations center on quarrying impacts, including habitat disruption and dust generation from extraction. Granite quarrying in Italy and the US can lead to soil erosion and biodiversity loss if not managed, though sustainable practices like site reclamation mitigate effects. Soapstone extraction has a lower footprint due to smaller-scale operations in stable geological areas, with minimal deforestation reported in US quarries. Overall, natural stones promote longevity, reducing replacement needs and embodied carbon compared to frequent-use synthetics, provided sourcing adheres to certified sustainable standards.Ceramic and Composite Options
Ceramic baking stones represent a manufactured alternative to natural stones, offering engineered consistency in thermal performance. These stones are primarily composed of fired clay mixtures, such as cordierite or mullite, which are selected for their low thermal expansion coefficients to minimize cracking under heat stress. Unlike the variable porosity of natural stones, ceramics provide a more uniform structure that enhances even heat distribution during baking. The production of ceramic baking stones involves high-temperature kiln-firing, typically exceeding 2000°F (1093°C), to form dense, non-porous bodies that resist moisture absorption and warping. This process vitrifies the clay, creating a hard, durable surface suitable for repeated oven use. Composite variants incorporate reinforcements like fiberglass to boost tensile strength and prevent fractures, particularly in thinner designs. Manufacturers often shape the mixtures via extrusion or pressing before firing, ensuring precise dimensions for home and commercial ovens. Key properties of ceramic baking stones include exceptional thermal shock resistance, allowing them to endure rapid shifts from ambient temperatures to 900°F (482°C) without thermal fracturing. They are notably lighter than natural stone counterparts, weighing approximately 10-15 pounds for a standard 14-inch diameter model, which facilitates easier handling and storage. This reduced weight stems from the optimized clay formulations and avoids the density of quarried rock. Unique features of ceramic options include both glazed and unglazed finishes; unglazed surfaces promote natural browning and crispiness by absorbing excess moisture, while glazed versions offer easier cleaning and a smoother release. Some advanced models feature micro-perforations to improve airflow beneath the dough, accelerating moisture evaporation for superior crust texture. These design elements cater to bakers seeking customizable performance without the inconsistencies of natural materials. Prominent market examples include Emile Henry, known for its flameware ceramic stones made from high-fired clay since the 1990s, which introduced microwave-safe variants for versatile home use. Baker's Pride offers composite ceramic stones reinforced for durability in professional settings, emphasizing thermal stability for high-volume baking. These brands have popularized ceramics by focusing on accessibility and innovation in everyday cooking.Metal Alternatives
Metal alternatives to traditional baking stones primarily consist of steel plates, offering enhanced heat transfer properties for baking and cooking applications. These are typically made from carbon steel or stainless steel, with thicknesses ranging from 0.25 to 0.5 inches, resulting in plates that weigh approximately 15 to 20 pounds for standard sizes like 14 by 16 inches.[19][20] Carbon steel is favored for its superior performance, while stainless steel provides greater corrosion resistance but lower conductivity.[20] Design features of metal baking stones emphasize simplicity and functionality, often featuring plain, flat surfaces to maximize direct contact with food for even cooking. Some models include integrated handles or cutouts for safer handling and removal from hot ovens, reducing the risk of burns during use. Corrugated or ribbed variants are less common but can improve airflow and prevent sticking in certain high-heat scenarios. Unlike brittle stone options, steel plates are highly durable and resistant to cracking or breakage, addressing a common issue with natural and ceramic stones.[21][20] The development of baking steels gained prominence in the 2010s, pioneered by inventor Andris Lagsdin, who introduced the concept in 2012 using steel from his family's manufacturing shop to achieve professional pizza results at home. This innovation addressed the limitations of stone breakage while leveraging metal's inherent advantages. A key property is steel's high thermal conductivity, approximately 50 W/m·K for carbon steel compared to 2-3 W/m·K for typical stone materials, enabling faster heat absorption and quicker preheating times of 20-30 minutes versus 45-60 minutes for stones.[22][23][20][24] Beyond pizza, metal baking stones excel in unique applications like high-heat searing of steaks, where their even surface heating and lack of moisture absorption promote superior browning and crust formation without sogginess. This makes them versatile for proteins and vegetables, providing consistent results in home ovens preheated to 500°F or higher.[25][26]Functionality and Usage
Heat Transfer Mechanisms
Baking stones primarily function through their high thermal mass, which allows them to absorb heat from the oven gradually over an extended preheat period, typically 45-60 minutes at temperatures around 500°F, before releasing it evenly to the food via radiation and conduction. This process is governed by the fundamental equation for heat capacity:where represents the heat absorbed or released, is the mass of the stone, is its specific heat capacity, and is the temperature change. Materials like cordierite in baking stones have a specific heat capacity of approximately 0.8-1.0 J/g·°C, enabling substantial heat storage that sustains temperatures longer than lighter alternatives.[27] The stone's surface facilitates conduction, directly transferring stored heat to the base of the dough for rapid initial cooking, while the surrounding oven air promotes convection to the top and sides, ensuring balanced heating without excessive drying. This combination significantly reduces hot spots compared to metal sheet pans, which can exhibit temperature variations of hundreds of degrees across their surface; baking stones maintain uniformity within ±10-15°F, minimizing uneven baking and promoting consistent oven spring. Radiation from the stone further aids in even distribution, as the material's high emissivity (close to 1 for dark stones) efficiently emits infrared heat upward.[28][29][30] Porous baking stone surfaces, such as those made from natural stone or ceramic, can wick away excess steam released from the dough during baking, which helps control moisture levels and facilitates the Maillard reaction—a non-enzymatic browning process between amino acids and reducing sugars that activates optimally between 280°F and 355°F (140–180°C)—for enhanced crust flavor and color development. This moisture management contrasts with non-porous alternatives and contributes to a drier, crispier base by preventing sogginess.[24][31] Material composition influences heat transfer dynamics: stone and ceramic options exhibit thermal inertia, providing a slow, steady release of heat due to lower thermal conductivity (around 1-3 W/m·K), which suits prolonged baking at stable temperatures like 500°F for over 10 minutes. In contrast, metal alternatives like steel offer quick response times with higher conductivity (up to 50 W/m·K, about 20 times that of stone), enabling faster heat penetration but less sustained release, ideal for high-intensity short bakes. Empirical tests demonstrate that stones yield measurably crispier crusts through this uniform temperature maintenance, with direct conduction leading to enhanced bottom browning and texture compared to sheet pans.[32][30][27]