Compost Testing ServiceCompost varies a great deal more than most growers and composters alike realise. The difference in dollar terms may not vary a great deal on a per ton or m3 basis, however on a value received basis on quality, it may vary unto 400%. What does this mean? A great compost can achieve better results with 12 tons ha as the worst ones using 40 tons. If they cost a similar amount you can guess which one you should buy! However don't take the composters word