Quince jam
materials:
2.5 kilos of quince (2500 Grams)
2 kilos of sugar (2000 Grams)
7-8 cloves
15-20 quince seeds
2 liters of water (2000 Grams)
half a teaspoon of butter (1.5 grams)
1 level teaspoon of lemon salt (2 grams)
juice of half a small lemon