Begin by ensuring both n8n and Snowflake are set up and accessible. You need an n8n instance running, and a Snowflake account with the necessary permissions to create tables and load data.

In n8n, configure a workflow to prepare the data you wish to transfer. Use n8n's internal nodes to manipulate and format your data as needed. Ensure the data is structured correctly, matching the schema you will use in Snowflake.

Use n8n's built-in nodes to export the prepared data to a CSV or JSON file. You can achieve this by using the 'Write Binary File' node to save the data locally on the server where n8n is hosted.

Since Snowflake can load data from cloud storage, transfer your file to a supported cloud storage service such as AWS S3, Google Cloud Storage, or Azure Blob Storage. Use n8n's HTTP Request node to programmatically upload the file to your chosen cloud storage.

In Snowflake, create an external stage that points to the location of your file in the cloud storage. Use the following SQL command:
```sql
CREATE STAGE my_stage
URL='s3://your-bucket-name/'
STORAGE_INTEGRATION = my_integration;
```

Use Snowflake's COPY INTO command to load data from the stage into a Snowflake table. Ensure the table schema matches the file structure. Execute the following command in Snowflake:
```sql
COPY INTO my_table
FROM @my_stage/your-file.csv
FILE_FORMAT = (TYPE = 'CSV' FIELD_OPTIONALLY_ENCLOSED_BY='"');
```

After executing the COPY INTO command, verify that the data has been loaded correctly into Snowflake. Run a SELECT query to inspect the data and ensure there are no discrepancies:
```sql
SELECT FROM my_table;
```

This guide provides a direct method to transfer data from n8n to Snowflake without relying on third-party connectors, utilizing cloud storage as an intermediary step.