SAMPLE SUBMISSION GUIDELINES
Keys to successful sample submission at Core Enology
~ 50mLs is all it takes: All analyses performed at Core Enology can be run off a single 50mL sample tube.
~ Minimize headspace: To help ensure sample integrity and adequate volume for analysis please fill the 50mL tube all the way to the top. (Our red-cap tubes are much less prone to leakage than other tubes out there.)
~ Beware of cross-threading: When capping the tube make sure it hasn’t been cross-threaded. Cross-threading pretty much guarantees leakage.
~ Print neatly: Taking the time to write the id of each sample as clearly as possible on our pre-printed sample labels will minimize the amount of guesswork at login
~ Keep samples cool: During the summer months especially, it doesn’t take long for samples to warm up in a hot car, possibly shifting volatile parameters like FSO2 and alcohol. Consider a cooler/cold pack to help keep your samples cellar fresh.
~ Shipping samples by UPS or FedEx: Even for wineries that are relatively close to the lab, shipping samples by UPS or FedEx can be a great option. It’s generally best to minimize the amount of time samples spend in transit – next day delivery is generally best. (Check UPS/FedEx coverage maps to see if your winery is next day by Ground.)
Fresh samples are very much preferred. That said, it’s important to avoid fermentation in the tube. Samples that arrive actively fermenting are problematic from both a sample prep/analysis and a sample integrity standpoint. Here are some suggestions for submitting juice samples:
~ Minimize holding time: Get samples to the lab ASAP after collecting them.
~ Avoid inadvertently cold stabilizing your samples: Juice samples that get put in a fridge or freezer are likely to precipitate potassium tartrate crystals. When this happens the acid-related parameters of the juice panel can be significantly impacted - potassium, tartaric acid, and titratable acidity can all see dramatic decreases. (Please note: Frozen or refrigerated juice samples will be subject to a prep fee of $5/sample)
~ Fresh samples = faster turnaround: Samples that have been refrigerated or frozen require heating to resuspend tartrates. This additional sample prep step will lead to a delay in getting results back to you.
~ Worried about your sample fermenting? If you’re concerned that your sample might ferment in the tube, we suggest boiling the sample rather than refrigerating or freezing. Follow these simple steps:
Questions? Don't hesitate to reach out to us, we're happy to guide you through the sample submission process.