``They'd melt to death,'' said Pam Porodo, co-founder of Impakt Aid, a recently formed independent group working out of Colombo, the Sri Lankan capital.
Westerners touched by the suffering also have sent food, generously emptying out their larders of items that might be standard fare back home but don't quite work locally.
Canned mixed vegetables in cream sauce are one example. First of all, most locals don't have a can opener. Secondly, people here eat fresh vegetables and most don't like the taste of creamed or canned food, or may well get sick from it.
``The Sri Lankans can be very stubborn about what they eat, even if they go hungry,'' said Michelle Cornman, 28, a special education teacher helping with relief efforts. ``And the wrong foods disrupt their system.'' Sri Lankans and local charity groups say they are incredibly grateful for the global outpouring of help and support. At this point, a growing number of communities are no longer short of basics.
For example, in the relatively remote Ottusuttan refugee camp in northeastern Sri Lanka, several hours from the nearest paved road, more than 300 displaced people are now receiving three meals and two snacks a day.
At several camps in the south, including the Wijitharama Buddhist temple in Dewata, children have begun using 5-foot-high piles of donated clothes as an unofficial playground.
With essentials less of a worry, it is becoming increasingly clear that what tsunami victims are receiving is not always the most effective use of resources.
Some of this is inevitable, humanitarian groups say, given the huge gap in culture, distance and lifestyles between well-intentioned donors in wealthy countries and impoverished refugees on the ground. Aid shipments have included items that are not only extravagant by local standards - including expensive organic bath gels and body lotions - but from such a different cultural world as to be strange and unusable to impoverished Sri Lankans.
Even some items that hit the mark are viewed with mixed emotions by those working in the trenches. Children's designer shirts with their $40 price tags still attached, or boxes of flip-flops that cost $25 in postage alone to send, are certainly useful. Yet that amount of money spent locally could buy 20 or 30 times as many items in styles the locals prefer, even as the money helps rebuild the economy.
Mismatches extend to temporary housing. The Netherlands immediately sent 1,200 tents 14 feet high and made of heavy canvas. The problem is they're too big. Most people want to live on the site of their ruined houses, which are small and often still rubble-filled.
"It's a bit of a shame,'' said Olof van Joolen, a Rotterdam-based reporter with the Algemeen Dagblad newspaper following Dutch relief efforts. "They're sitting unused in a warehouse in Colombo.''
In the grand scheme of things, the mismatches are minor inconveniences relative to the bigger job of making sure people have food in their stomach and a roof over their head. But they also represent missed opportunities. For example, no one has shipped women's sanitary products, which are in urgent need.