A 3-liter pressure cooker may not be large enough to comfortably cook 1 kg of meat (chicken or mutton). The capacity of a pressure cooker is determined by its size, and the general rule of thumb is that it should not be filled more than two-thirds (2/3) to ensure proper pressure buildup and cooking.
When cooking meat in a pressure cooker, it's essential to leave enough space for the steam to build up and circulate. If the pressure cooker is too full, it may not reach the required pressure, and the meat may not cook evenly or thoroughly.
For 1 kg of meat, it's better to use a larger pressure cooker, preferably around 5 to 6 liters in capacity. This will give you enough space to add other ingredients like vegetables or liquids and allow the meat to cook properly under pressure.
If you have a 3-liter pressure cooker and want to cook 1 kg of meat, you may need to divide the meat into smaller batches and cook them separately or consider reducing the quantity of meat to fit within the recommended capacity.
Always refer to the specific instructions and guidelines provided by your pressure cooker's manufacturer for proper usage and safety measures. Overfilling a pressure cooker can be hazardous, so it's crucial to follow the recommended capacity for safe and effective cooking.