Cooking and purifying the base. 3 Next, the gum base is cooked in kettles at 243 degrees Fahrenheit (116 degrees Celsius) until it has melted into a thick syrup. To purify it, workers pass it through screens and place it in a high speed centrifuge before refiltering it, this time through finer screens.
When unusually heavy rains saturate the soil, a tomato plant's leaves may curl. Plant roots need air, just like the above ground parts. When heavy rains saturate the soil, the roots can't get enough air. This can result in root damage, which causes the tomato to react in a similar way to sudden hot weather.
f the leaves on your vegetable plants are. twisted or curled, the problem could be. environmental, chemical, or biological. Sometimes all the leaves on a plant are twisted. or curled; sometimes only new growth has. symptoms while older leaves are normal. Damage may start moderately then quickly. begin to affect new growth. Damage to tomato. and other vegetable plants may have one or a. combination of causes (Figs.