Is there a customs limit to how much chocolate I can bring on a plane into the Philippines?
No. Chocolates are not dutiable items. Examples of bonded and dutiable goods in the Philippines include alcohol in excess of customs allowance, tobacco products in excess of customs allowance, parfum in excess of customs allowance, and brand new/unused appliances. I bring boxes of toblerones from Poundland and I bring them to the Philippines (my home). A one-pound toblerone in Poundland will cost three pounds in the Phils. Enjoy your shopping, give me some, he he he. By the way, the only limitation concern that I see is your check in total baggage weight allowance, which is 40 kg, and your total hand carry weight allowance, which is 15 kg. I don’t think your luggage will be nothing but all chocolates, and I don’t think this luggage weight allowance will make a profitable and sustainable commercial undertaking.