[COLOR PROFILE] - Aegean Blue is a rich, deep blue glaze with strong indigo and cobalt undertones. The finish is glossy and semi-opaque, allowing for subtle layering of color where the glaze thickens, producing darker, more saturated areas. Slight tonal variation and visible brushwork or pooling create a dynamic surface with a fluid, almost oceanic quality. [PENGUIN POTTERY GLAZES] - Conscientiously crafted in Vermont, USA, our lead-free, non-toxic, food-safe low-fire glazes bring you rich and vibrant color palettes. [INSTRUCTIONS] - Always fire in a calibrated pottery kiln - not a kitchen oven - at the proper cone to match your swatch. Over- or under-firing can damage your work or yield uneven results. [1% FOR SCHOOLS] - The Penguin Fund is Penguin Pottery's commitment to the future of ceramics. We donate 1% of sales to underserved public schools that need support for their ceramics classes. We also support artists through the Craft Emergency Relief Fund (CERF+). [LIFETIME WARRANTY] - All Penguin Pottery products are backed by our Lifetime Warranty. if you have any issues, we will give you a refund or replace your product - no questions asked! See warranty & support section for more information. [ABOUT PENGUIN POTTERY SUPPLIES] - At Penguin Pottery, we believe in responsible US-based manufacturing. We’re dedicated to minimizing our environmental footprint through sustainable manufacturing practices, eco-friendly packaging, and responsible sourcing. We back our products with a lifetime warranty, because we stand behind our products as much as we stand behind our community. Penguin Pottery’s glazes offer a huge range of effects to choose from: vivid, bright, smooth, glossy, textured, satin, matte; opaque, semi-opaque, semi-translucent, translucent, flowing, non-flowing. Our low fire glazes are perfect for school projects, classrooms, studios, and potters who do not fire at high temperature. These low fire glazes are the potter’s choice when looking for a wide palette of colors, like celadon, lively reds, deep greens, bright blues. Our mid fire glazes offer similar ranges but also introduce interesting effects and tonality not available in low fire glazes. Our glazes are lead-free, non-toxic and food safe (when properly fired and tested). Make sure to shake the jar well before using, and do not allow it to freeze. Try them out and let us know what you think!