SAMPLE SUBMISSION GUIDELINES
Keys to successful sample submission at Core Enology
~ 50mL is all it takes for most analyses: Most analyses performed at Core Enology can be run off a single 50mL sample tube. The exception is Cold Stability Check which requires 250mL sample volume.
~ 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. Samples that arrive actively fermenting are problematic from both a sample prep/analysis/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.
~ Worried about your sample fermenting? Contact us - we're happy to offer some suggestions to minimize the risk of fermentation.
Questions? Don't hesitate to reach out to us, we're happy to guide you through the sample submission process.