Oyster Mushroom Flush Frequency: Days Between Harvests

how many days between flushs of mushrooms oysters

Oyster mushrooms are known for their vibrant colour and rapid growth. The time between flushes varies depending on the type of mushroom, the substrate used, and the environmental conditions. Typically, the period between flushes is necessary for the restoration of the mycelium and the germination of hyphae to the perforations. For oyster mushrooms, the time between flushes can range from 4 to 14 days. For example, one study found that the minimum number of days between flushes for oyster mushrooms grown on corncobs was 4.95 days, while another source suggests that subsequent flushes of pink oyster mushrooms may take up to two weeks.

Characteristics Values
Number of flushes 2-3 productive flushes from a single substrate block; some growers report up to 5 flushes
Time between flushes 4.7-8 days; 5-6 days; 5-7 days; 6-8 weeks
Time to grow 5-7 days; 10 days; 2 weeks
Optimum temperature 18-29°C; 19-20°C; 50-70°F (10-21°C); 65-85°F
Optimum humidity 80-90%

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Oyster mushrooms can take 4-5 days between flushes

Oyster mushrooms are a great option for growers because a single substrate block can produce multiple harvests or "flushes". The first flush is typically the largest, with subsequent flushes producing progressively smaller yields. While some growers report up to five flushes, yields beyond the third flush are often minimal and the risk of contamination increases with each cycle.

The period between flushes is necessary for the restoration of the mycelium and the germination of hyphae to the perforations. To speed up the process, you can create conditions resembling incubation by raising the temperature to 19-20°C for three to four days. On the fifth day, begin to gradually cool the air and lower the humidity so that, in two to three days, the conditions in the room become optimal for growing.

The time between flushes also depends on the type of substrate used. For example, the minimum number of days between flushes on a corn cob substrate is 4.95, while on wheat straw, it is 5.17. Oyster mushrooms grown on corn cob substrates will, therefore, produce flushes closer together than those grown on wheat straw.

It's important to be patient between flushes. If your bag has gone a couple of weeks without growing, try sticking it in the fridge for a few days and then reintroducing it to your growing area and continuing watering.

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The number of days depends on the type of substrate

Oyster mushrooms are the fastest-growing type of mushrooms. The time it takes to grow them depends on the type of substrate used. Masters mix, a mixture of sawdust and soybean hulls, is one of the fastest substrates to grow oyster mushrooms on. Oyster mushroom bags, another substrate, are made of cleaned straw and sawdust and are introduced to an oyster mushroom spawn. They are then colonised for 3 to 4 months so they're ready to go as soon as you receive them.

The number of days between flushes of oyster mushrooms grown on different substrates has been studied. The minimum number of days between flushes was calculated on corn cob (4.95 days), followed by wheat straw (5.17 days). Sugarcane bagasse and rice straw have only two flushes, and the number of days between flushes is higher at 8.50 and 7.25 days, respectively.

The structure of the oyster mushroom substrate is such that liquid is practically not absorbed, and mould appears in the soaked areas. The outer layer of the oyster mushroom substrate dries out, and there will be no fruiting without the film. If you have a single-zone system, create conditions resembling incubation for the restoration of hyphae and their growth to the perforations.

The period between flushes is necessary for the restoration of the mycelium and the germination of hyphae to the perforations. Usually, primordia appear after a week. However, if the chamber is cold, below 13 degrees Celsius, the appearance of mushrooms will be delayed indefinitely. Summer strains, for example, Pleurotus pulmonarius, bear fruit almost without interruption, one or two days after harvesting.

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For pink oyster mushrooms, the ideal harvest time is when caps are expanded

Oyster mushrooms are a delicate crop, and the time between flushes varies depending on the substrate and growing conditions. For example, the number of days between flushes of oyster mushrooms grown on wheat straw is 5.17, while on corn cob, it is 4.95. The period between flushes is necessary for the restoration of the mycelium and the germination of hyphae to the perforations.

Now, let's focus on pink oyster mushrooms and the ideal harvest time.

For pink oyster mushrooms, the ideal harvest time is when the caps are expanded, but before they begin to flatten out or curl upwards. This typically occurs 5 to 7 days after the initial pinning or when the mushrooms first start to emerge. It is crucial to monitor the growth closely, as pink oyster mushrooms can mature rapidly. The caps will display a vibrant pink hue that fades as they age, and the gills underneath will be visible but not overly mature or darkened. The mushrooms will also have a firm texture and a slight upward curl of the edges.

Harvesting at this stage ensures maximum flavor and texture and prevents spore release, which can diminish quality and shelf life. Waiting too long to harvest can result in a decline in quality, as the mushrooms will start to lose moisture and flavor, becoming overly mature with a tougher texture and diminished taste. Conversely, picking them too early will result in smaller mushrooms with less developed flavor and texture, reducing overall yield and quality. Therefore, it is recommended to harvest in stages, picking mature mushrooms as they reach the ideal size to encourage the continued growth of the remaining fruiting bodies.

To extend the viability of pink oyster mushrooms, proper storage methods must be employed. They are best when enjoyed immediately after harvesting, but when immediate consumption is not possible, refrigeration is essential. A paper bag is the ideal storage container due to its breathability, which is vital for retaining quality.

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The first flush is usually the largest, with subsequent flushes smaller

Oyster mushrooms are fungi that can be cultivated in bags or logs using straw, sawdust, or other substrates. They are prized for their fast growth and multiple flushes, with some growers reporting up to five flushes per block. However, it is important to note that yields beyond the third flush are often minimal, and the risk of contamination increases with each cycle.

The first flush is usually the largest, with subsequent flushes gradually decreasing in size. This is due to the natural growth cycle of the mushrooms, as the mycelium needs time to rest and restore itself between flushes. Proper care and rehydration between flushes are crucial to promoting subsequent pinning and maintaining optimal growing conditions, including temperature, humidity, and light.

The time between flushes can vary depending on the strain and growing conditions. Studies on different strains of oyster mushrooms, such as Pleurotus ostreatus and Pleurotus pulmonarius, have found that the period between flushes can range from 4.7 to 8 days. However, it is important to note that the outer layer of the substrate needs to be kept moist, as drying can hinder fruiting.

To promote the second flush, growers can create conditions resembling incubation by raising the temperature to 19-20°C for three to four days. If the first flush was productive, growers can expect a weaker second flush with a yield of no more than 3-5%. For outdoor cultivation, spring and fall are the best seasons, with temperatures ranging between 10-21°C and naturally higher humidity.

By understanding the growth cycle and providing proper care, growers can maximize the yield and quality of their oyster mushroom flushes, even though subsequent flushes may be smaller than the first.

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Optimal growing conditions can reduce the number of days between flushes

Oyster mushrooms typically take between 4.7 and 8 days to flush, with some growers reporting intervals of 5-6 days. However, the time between flushes can be longer or shorter depending on various factors, such as the growing conditions and the health of the mushroom block.

The substrate type also affects the time between flushes. Different strains of oyster mushrooms may have varying preferences for substrates such as corncob, wheat straw, rice straw, or sugarcane bagasse. For example, one study found that the minimum number of days between flushes on a corn cob substrate was 4.95 days, while wheat straw had a slightly longer period of 5.17 days. Sugarcane bagasse and rice straw had longer intervals between flushes, with 8.50 and 7.25 days, respectively.

Additionally, proper block management can reduce the time between flushes. After harvesting the first flush, it is essential to clean the slits of any white dense pieces of mushroom tissue sticking out of the substrate. This allows the mycelium to grow faster into the perforations for the next flush. The holes or slits should be processed immediately after collecting the mushrooms to prevent mold from settling on the remains of the mushroom butt.

Furthermore, the productivity of the first flush impacts the timing of the second flush. If the first flush is productive, with a yield of 22-25%, the next flush will likely be weaker and have a lower yield of 3-5%. In this case, it is advisable to move the batch outside to a shady place instead of keeping it in a climate-controlled chamber.

Frequently asked questions

The time between flushes varies depending on the type of mushroom, the substrate used, and the environmental conditions. On average, you can expect around 4-5 days between flushes, with some mushrooms taking up to 7-8 days.

You can typically expect 2-3 flushes from oyster mushrooms, with the first flush being the largest. Subsequent flushes may be smaller.

The ideal time to harvest oyster mushrooms is when the caps have fully expanded but before they begin to curl upwards and release spores. Harvesting at this stage ensures the best flavor, texture, and yield.

After harvesting, rehydrate the substrate by misting it with water. Maintain optimal growing conditions, including temperature, humidity, and light, to encourage further pinning.

Signs of contamination include unusual colors or growths on the mushrooms or substrate, foul odors, and the presence of pests such as fungus gnats. Always clean your hands and tools before harvesting to minimize the risk of introducing contaminants.

Additional Notes:

- The period between flushes is necessary for the restoration of the mycelium and the germination of hyphae.

- The oyster mushroom substrate should be cleaned after each harvest to prevent mold growth.

- Oyster mushrooms thrive in temperatures between 65-85°F (18-29°C) and require high humidity levels (80-90%).

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