Step 2: The Mix
It doesn't get any easier then this. The proportions I used for a 17"x11" sheet of glass is as follows.
2 cups water
1 cup corn syrup
3 1/2 cups sugar
1/4 tsp. cream of tartar
Now mix these ingredients into your pot and SLOWLY bring them to a boil. If you heat it too rapidly the mix sugar will caramelize (become yellow and burnt). Depending on the altitude your sugar glass mix should start to boil around 160-200*F. Your mix will start cloudy and white, but as it starts to boil it becomes clear.
If you're heating it at the right pace, it should take at least an hour to reach our target temperature, which is 300*F. My first batch started turning slightly yellow at about 290* and resulted in yellow glass. The second batch I removed at 260*, and while being more clear, it was very soft. My remedy, put it in the refrigerator until you need to break it.
2 cups water
1 cup corn syrup
3 1/2 cups sugar
1/4 tsp. cream of tartar
Now mix these ingredients into your pot and SLOWLY bring them to a boil. If you heat it too rapidly the mix sugar will caramelize (become yellow and burnt). Depending on the altitude your sugar glass mix should start to boil around 160-200*F. Your mix will start cloudy and white, but as it starts to boil it becomes clear.
If you're heating it at the right pace, it should take at least an hour to reach our target temperature, which is 300*F. My first batch started turning slightly yellow at about 290* and resulted in yellow glass. The second batch I removed at 260*, and while being more clear, it was very soft. My remedy, put it in the refrigerator until you need to break it.
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