How to improve cocoa bean size and weight

Two of the most important quality parameters in cocoa are the bean size and weight. The objective is to increase these as much as possible.

Crop nutrition and cocoa bean size and weight

Potassium 

Potassium has a direct effect on bean size – which is one of the most important quality characteristics. It increases both bean size and weight.

Planting Density
  Typical Density
Asia 400-500
Central America 625
South America 625-1100
West Africa Up to 1600

Calcium

Magnesium

Magnesium contents in cocoa products are relatively high compared to some other foods. However, high levels of potassium and/or calcium can restrict and compete with uptake of magnesium, so it is important that these nutrients are well balanced.

Mg Magnesium/100g Food
Cocoa Powder 520 Biscuit, gingernut 25
Chocolate Drink 150 Biscuit, semi-sweet 20
Almonds 260 Bran, wheat 520
Cashews 267 Wheat grain 160
Peanuts, raw in shell 130    

Zinc helps produce enzymes important for cocoa fermentation.