The butterfly drawers would be sturdy enough for grains and cans. I would just make sure the drawer glides are able to hold the weight. I usually look for Blum hinges and glides, they've usually held the best for prior projects. Lazy susans are usually what I love to use for corner storage. However Lazy Susans with a center pole usually cut down on storage space and can be cumbersome when trying to get items in and out. I love the ones that are mounted to a fixed shelf with no center pole. If something falls off it's just like reaching in the back of the cabinet shelf. Plus with the fixed shelf your able to store heavier items like mixers, pots and pan. Magic Corners I find to be awkward when trying to store items, and most you can usually just fit smaller items in the compartments. And the one complaint I get from them is that the glides get sticky over time. If your still wondering what options to go with, find a local kitchen showroom and try them out. Open all the options your looking at and see what fits your lifestyle and habits.

Thanks Patricia and cpaul! I hadn't thought about glass. And I guess I should specify that a fully modular kitchen would not withstand the climate lol. The doors and Windows in General are traditionally made of teak wood and do warp somewhat but it's not a huge issue, so I fiured if all I am dealing with in the kitchen is the cabinet door it shouldn't be too hard to maintain. I actually ended up finding a blog about someone living in the tropical Philippine weather and how they covered their concrete counter with cabinets. Here is the link if anyone is interested http://myphilippinelife.com/our-philippine-house-project-kitchen-cabinets/ I think it turned out quite nice :) . This was their starting and final result. there are more photos in the blog. They basically recommended some prefabricated cabinets and strong hinges and screws for the wood frame.

I moved to India in 2008 and had to relearn how to store food safely. These airtight plastic containers keep insects and humidity (mould/fungus) out of my dhals and spices. India cooking requires larger spice containers than shown in the above pictures. You can also get this same type of container in smaller sizes. Nice to have all of them in the same colour!! Makes the cupboard look tidy.

Thanks Nitin and Ideal Lifestyle. Sorry for the late reply, I don't know why my net is not working properly from the last few days. Ny way, I actually see the foating kitchen cabinet in google image. May be that it not good for our Indian kitchen. I love the drawyer system that offered in modular kitchen cabinet. But at the same time I have no patience to dry the the kitchenware (cookware/dish etc.) after washing. Now we put it on the steel dish rack (commonly visible in Indian kitchen) hanged in our wall after every wash, which no need to first dry and then store. But I want to conceal the dishes, pressure cookers, kadhais in drawyers. In my dream kitchen big kitchenware should be concealed, hanging cookware like saucepan, tawa, frying pan would hang on s hooks in railing and open shelve for the dry goods in glass/tin/ceramic jar.